Frost dates for 78504Mcallen, TX
Frost occurs in about 48% of years near Mcallen, based on NOAA 1991-2020 records for the Mcallen, TX station.
Frost occurs in about 48% of years. Frost-tender plants can usually grow year-round, but cover them if a rare cold snap is forecast.
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | Dec 20 · Jan 27 · Mar 1 | Nov 27 · Dec 19 · Jan 26 | 330 days | 87% |
| Frost / freeze (32°F) | Dec 14 · Jan 9 · Feb 12 | Dec 8 · Jan 1 · Feb 4 | 365 days | 48% |
| Hard freeze (28°F) | Dec 15 · Jan 4 · Feb 9 | Dec 14 · Jan 2 · Feb 6 | 365 days | 16% |
Where these dates come from
ZIP code 78504 is matched to the NOAA station Mcallen, TX, 7.4 km away, at 100 ft elevation (18 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Mcallen, TX (used) | 100 ft | Jan 9 | Jan 1 |
| Mcallen Miller Intl Ap, TX | 100 ft | Jan 9 | Jan 3 |
| Edinburg, TX | 96 ft | Jan 8 | Jan 2 |
| La Joya, TX | 213 ft | Jan 23 | Dec 28 |
Frost dates near Mcallen
- Mcallen, TX 78502 · last Jan 8, first Jan 2
- Edinburg, TX 78539 · last Jan 8, first Jan 2
- Mission, TX 78573 · last Jan 23, first Dec 28
- San Juan, TX 78589 · last Jan 9, first Jan 1
- Pharr, TX 78577 · last Jan 9, first Jan 1
- Alamo, TX 78516 · last Jan 8, first Jan 2
- Hidalgo, TX 78557 · last Jan 9, first Jan 3
- La Blanca, TX 78558 · last Jan 8, first Jan 2
Frequently asked questions
- When is the last frost in Mcallen, TX?
- Frost occurs in about 48% of years at the nearest NOAA station (Mcallen, TX), so there is no reliable average last frost date.
- When is the first frost in Mcallen, TX?
- Frost occurs in about 48% of years at the nearest NOAA station.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.